Magnets in the Auxiliary Transmission Screen…..
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
Topic author - Posts: 712
- Joined: Sun Jan 06, 2019 2:01 pm
- First Name: Michael
- Last Name: Pawelek
- * REQUIRED* Type and Year of Model Ts owned: 1919 Touring, 1925 Coupe
- Location: Brookshire, Texas
- Board Member Since: 1999
Magnets in the Auxiliary Transmission Screen…..
What is the best adhesive to use that will tolerate the heat and vibration?
-
- Posts: 2531
- Joined: Fri Jan 04, 2019 4:17 pm
- First Name: Mark
- Last Name: Strange
- * REQUIRED* Type and Year of Model Ts owned: 1924 Cut Off Touring (now a pickup)
- Location: Hillsboro, MO
- Board Member Since: 2013
Re: Magnets in the Auxiliary Transmission Screen…..
The screen is steel, so I just let the magnetism of the magnet keep it on the bottom of the depression of the screen (so far so good, knock on wood). My screen came with the thin rectangular magnet that nearly spans the width of the screen.
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
-
- Posts: 81
- Joined: Wed Jan 16, 2019 9:07 pm
- First Name: Joshua
- Last Name: Hawkins
- * REQUIRED* Type and Year of Model Ts owned: 1923 Touring
- Location: Southwest Michigan
- Board Member Since: 2019
Re: Magnets in the Auxiliary Transmission Screen…..
After reading a post here a few years back about a magnet working its way out of the screen, I have used two pieces of safety wire to retain the magnet.
-
- Posts: 6262
- Joined: Tue Jan 08, 2019 4:56 pm
- First Name: Frank
- Last Name: Brandi
- * REQUIRED* Type and Year of Model Ts owned: Speedsters (1919 w 1926 upgrades), 1926 (Ricardo Head)
- Location: Moline IL
- Board Member Since: 2018
Re: Magnets in the Auxiliary Transmission Screen…..
There have been previous discussion about the possibility of the bar magnet deteriorating over time and particles cause a problem. Some suggest attaching it to the outside of the transmission inspection cover; or a string magnet in that position. Was wondering if wrapping it some high temperature HVAC tape (3M™ High Temperature Aluminum Foil Tape 433, max temp over 600°F (316°C) would be an internal solution. Wiring it down to the screen is the recommend method to hold it in place. Other issues relate to it capturing too much stuff (slug etc) but that is intending use and a filter requires maintenance to keep it clean and checking the magnet; enough said. Enlarging the drain holes over the bands has also been done, but that seems to defeat the purpose of the screen.
http://www.mtfca.com/discus/messages/50 ... 1437749776
Neat video of oil flow without a screen https://www.youtube.com/watch?v=2m-za3o-lWo --
--
Modified screen vs unmodified screen.
My choice is the unmodified screen. Drilling the holes in the screen portion doesn't cause any more oil to flow over the bands and allows nonmagnetic junk to circulate. Once the unmodified screen fills up the screen portion, all additional oil is distributed over the bands
https://www.youtube.com/watch?v=dXimnKoDPSI The video of the unmodified screen - one could argue the benefit of enlarging the holes in the most forward position of the screen, need to remember that the transmission drums are rotating in a bath of oil
https://www.youtube.com/watch?v=I1w2vFTRUvQ
http://www.mtfca.com/discus/messages/50 ... 1437749776
Neat video of oil flow without a screen https://www.youtube.com/watch?v=2m-za3o-lWo --
--
Modified screen vs unmodified screen.
My choice is the unmodified screen. Drilling the holes in the screen portion doesn't cause any more oil to flow over the bands and allows nonmagnetic junk to circulate. Once the unmodified screen fills up the screen portion, all additional oil is distributed over the bands
https://www.youtube.com/watch?v=dXimnKoDPSI The video of the unmodified screen - one could argue the benefit of enlarging the holes in the most forward position of the screen, need to remember that the transmission drums are rotating in a bath of oil
https://www.youtube.com/watch?v=I1w2vFTRUvQ
The past is a great place and I don't want to erase it or to regret it, but I don't want to be its prisoner either.
Mick Jagger
Mick Jagger
-
- Posts: 964
- Joined: Wed Jun 19, 2019 12:57 pm
- First Name: Art
- Last Name: Mirtes
- * REQUIRED* Type and Year of Model Ts owned: 1923 Touring
- Location: Huron, Ohio
- Board Member Since: 2016
Re: Magnets in the Auxiliary Transmission Screen…..
I clean the screen and magnet at every oil change, which happens every 500 to 600 miles. The magnet never moves.
The screen is never filled but is partially plugged.
6200 miles so far using this filter system.
Art Mirtes
The screen is never filled but is partially plugged.
6200 miles so far using this filter system.
Art Mirtes
-
- Posts: 7237
- Joined: Fri Jan 04, 2019 9:37 pm
- First Name: Steve
- Last Name: Jelf
- * REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
- Location: Parkerfield, Kansas
- Board Member Since: 2007
- Contact:
Re: Magnets in the Auxiliary Transmission Screen…..
If you're worried about the magnet wandering, why not drill a hole in the center and attach it to the screen with a sheet metal screw? I've never had one move, but I may do that just to be sure it stays put.
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
-
- Posts: 81
- Joined: Wed Jan 16, 2019 9:07 pm
- First Name: Joshua
- Last Name: Hawkins
- * REQUIRED* Type and Year of Model Ts owned: 1923 Touring
- Location: Southwest Michigan
- Board Member Since: 2019
-
- Posts: 7391
- Joined: Sun Feb 14, 2021 10:08 pm
- First Name: Pat
- Last Name: McNallen
- * REQUIRED* Type and Year of Model Ts owned: 1926-7 roadster
- Location: Graham, Texas
- Board Member Since: 2021
Re: Magnets in the Auxiliary Transmission Screen…..
Many of the modern magnets are somewhat brittle. They aren't actually metal, but are some sort of composite or ceramic with metal content. I'd be cautious about drilling or bolting or otherwise fastening them. I have some old, very strong computer magnets that look like die cut steel tabs, but they aren't any common form of steel.
-
- Posts: 129
- Joined: Thu Apr 09, 2020 11:29 am
- First Name: leonard
- Last Name: simunek
- * REQUIRED* Type and Year of Model Ts owned: 1926 touring. 1931 model a pickup, 1947 willys cj2a
- Location: waukomis, ok
Re: Magnets in the Auxiliary Transmission Screen…..
After reading about a magnet being ground up when it fell into the transmission, I took mine out. I never seen any metal filings when I had it in the transmission.